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1920 Computer Hardware 220-1001 > RG: Practice Exam 1 > Flashcards

RG: Practice Exam 1 Flashcards

1
Q

Which of the following cellular technologies is also referred to as 4G?

A. HSPR

B. HSPR+

C. LTE

D. EVDO

A

C. LTE

4G or Long-Term Evolution (LTE) offers potential data rates competitive with 802.11 standards.

HSPR, HSPR+, and EVDO are all earlier and slower standards of cellular technology.

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2
Q

Which type of network cable is a specific type rated for use in heating and air-conditioning systems?

A. UTP

B. STP

C. Plenum

D. Phlegm

A

C. Plenum

Plenum cable is a specific type of cable that is rated for use in plenum spaces. Plenum spaces are areas in a building used for heating and air-conditioning systems.

Unshielded twisted pair (UTP) is the version used when no protection is needed from outside interference.

Shielded twisted part (STP) is the version used when protection is needed from outside interference.

Phlegm is a liquid secreted by the mucous membranes of mammals. It has nothing to do with cabling.

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3
Q

Which of the following is considered the IPv4 loopback address?

A. 0.0.0.1

B. 127.0.0.1

C. 192.168.0.1

D. 255.255.255.255

A

B. 127.0.0.1

On all TCP/IP IPv4 implementations, 127.0.0.1 is the loopback address.

and 192.168.0.1 are not the loopback address.

255.255.255.255 is an example of a subnet mask.

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4
Q

An IPv4 address of 194.16.3.1 falls into which network class?

A. Class A

B. Class B

C. Class C

D. Class D

A

C. Class C

Class C addresses have a value between 192 and 223 in the first octet.

An address in which the first octet is between 1 and 126 is a Class A address.

Class B addresses have a value between 128 and 191 in the first octet.

Class D addresses have a value between 224 and 239 in the first octet.

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5
Q

What is the autoconfigured address range in IPv6?

A. FE80::

B. ::0

C. 169.254.0.0

D. 255.255.255.0

A

A. FE80::

The autoconfigured address range in IPv6 is FE80::. In IPv4, it is 169.254.0.0.

::0 is the IPv6 loopback address.

255.255.255.0 is a 24 bit subnet mask.

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6
Q

What is the first step in the laser printing process?

A. Cleaning

B. Conditioning

C. Writing

D. Developing

A

A. Cleaning

In the first part of the laser print process, a rubber blade inside the EP cartridge scrapes any toner left on the drum into a used-toner receptacle inside the EP cartridge, and a fluorescent lamp discharges any remaining charge on the photosensitive drum (remember that the drum, being photosensitive, loses its charge when exposed to light).

In the conditioning stage, a uniform 600V charge is placed on the photoelectric drum by the primary corona.

In writing, the laser diodes write an image on the photoelectric drum by causing the drum surface to be less negative wherever the laser beam hits.

In developing, the transfer roller places the toner on the drum.

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7
Q

The system board’s underlying circuitry is called the __________.

A. Backplane

B. Bus

C. Backbone

D. Artery

A

B. Bus

The computer’s bus moves information into and out of the processor and other devices.

The backplane is used as to connect several printed circuit boards together to make up a complete computer system.

Backbone and artery are not terms used when discussing motherboards.

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8
Q

Which of the following devices goes into an AGP slot?

A. Video card

B. Memory

C. CPU

D. Sound card

A

A. Video card

Advanced Graphics Processor (AGP) slots were introduced to provide better support for video cards.

While memory and the CPU have dedicated slots, a sound card can go in several types of slots but not the AGP.

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9
Q

What motor is used by an impact printer to move the print head back and forth?

A. Klemson

B. Stepper

C. Wangle

D. Ladder

A

B. Stepper

A stepper motor is a motor that can move in small increments. Printers use stepper motors to move the print head back and forth as well as to advance the paper.

Klemson, Wangle, and Ladder are not terms used when discussing printer motors.

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10
Q

Which of the following networking terms is used to signify delays?

A. Bandwidth

B. Complicity

C. Collisions

D. Latency

A

D. Latency

Latency is the networking term used for delays.

Bandwidth is the amount of data that can be transferred in a connection.

Collisions occur when packets collide in a shared network.

Complicity indicates someone’s involvement in an affair and has nothing to do with networking.

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11
Q

What technology allows for memory and CPU to be dynamically allocated to the VMs as required?

A. Network-based virtualization

B. Hardware-assisted virtualization

C. Hyperthreading

D. Multitasking

A

B. Hardware-assisted virtualization

The benefit derived from the virtualization product (also called a hypervisor) using hardware-assisted virtualization is that it allows the hypervisor to dynamically allocate memory and CPU to the VMs as required.

Network-based virtualization is the deployment of network functions through software.

Hyperthreading is Intel’s proprietary simultaneous multithreading (SMT) implementation.

Multitasking occurs when a processor is doing work for multiple processes.

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12
Q

What type of PC card is used for memory?

A. Type I.

B. Type II.

C. Type III.

D. PCMCIA cards cannot be used for memory.

A

A. Type I.

Type I is used mostly for memory. These cards are rarely used in today’s systems, since the new laptops have other means of increasing memory, such as SODIMMs.

Type II cards are used for network interface and modem cards.

Type III cards are used for hard disk drives.

PCMCIA cards can be used for memory.

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13
Q

The size and shape of a motherboard is called its _______________.

A. Form factor

B. Physical topology

C. Outline

D. Footprint

A

A. Form factor

There are several sizes, or form factors, of motherboards.

Physical topology describes the physical layout of a network.

Outline and footprint are not terms used when discussing form factors.

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14
Q

Which of the following cellular technologies offers the best potential performance?

A. HSPR

B. HSPR+

C. LTE

D. EVDO

A

C. LTE

4G Long Term Evolution (LTE) offers potential data rates competitive with 802.11 standards.

HSPR, HSPR+, and EVDO are all earlier and slower standards of cellular technology.

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15
Q

BitLocker is an example of what type of technology?

A. Virtualization

B. VPN security

C. Drive encryption

D. Malware isolation

A

C. Drive encryption

Many operating systems provide the ability to encrypt an entire volume or drive, protecting a mobile device’s data in the event of theft. A good example of this is BitLocker, which is available in Windows 7, 8, and 10.

Virtualization is the deployment of network or commuting resources though software.

VPN security and malware isolation are not related to BitLocker at all.

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16
Q

Replacing which of the following items usually requires soldering?

A. DC jack

B. Battery

C. Touchpad

D. Antenna

A

A. DC jack

Replacing a bad DC jack usually requires soldering. If this is not a skill you possess, just replace the motherboard.

Batteries, touchpads, and antennas can all be replaced without soldering.

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17
Q

What is the diagnostics process that occurs during every startup called?

A. POST

B. Regedit

C. Polling

D. Syslog

A

A. POST

Every computer has a diagnostic program built into its BIOS called the power-on self-test (POST). When you turn on the computer, it executes this set of diagnostics.

Regedit is a Windows registry editing tool.

Polling is a network contention method used in the mainframe environment.

Syslog is a server where log files are centralized.

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18
Q

How many bits are included in IPv4 binary addresses?

A. 4

B. 16

C. 32

D. 256

A

C. 32

IP addresses are 32-bit binary numbers.

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19
Q

What is the most common reason for moving the DVD drive to the top of the boot order?

A. To listen to music on the DVD

B. To install an operating system

C. To copy data off the DVD

D. To boot to an operating system on the DVD

A

B. To install an operating system

Although it is possible to boot to an operating system on a DVD, that is not the most common reason for moving the DVD to the top of the list. You might set the DVD drive first to boot from a Windows 7 Setup disk on a system that already contains an operating system.

Listening to music and copying data off the disk are done after booting the operating system.

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20
Q

Which of the following would most likely be the cause of vertical white lines running down a page coming from a laser printer?

A. A scratch in the EP drum

B. Jammed paper

C. Foreign matter on the transfer corona wire

D. Improper driver

A

C. Foreign matter on the transfer corona wire

The vertical white lines are caused by foreign matter (more than likely toner) caught on the transfer corona wire.

A scratch in the drum will cause black lines.

Jammed paper will not cause white lines.

An improper driver will not cause white lines.

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21
Q

Accelerometers and gyroscopes are used to manage what function in a mobile device?

A. GPS

B. Screen orientation

C. Geotracking

D. Wireless scanning

A

B. Screen orientation

Both accelerometers and gyroscopes can be used by mobile devices to determine the movement and tilt of the device. This means the device can determine which way the screen is being held. It uses this information to automatically adjust the display orientation appropriately with no action on the part of the user.

The GPS is utilized to perform geolocation, while wireless scanning is done by the wireless client software.

22
Q

Which of the following items cannot be set through CMOS setup?

A. IP address

B. Port settings

C. Boot order

D. Date and time

A

A. IP address

The most common settings to adjust in CMOS include port settings (parallel, serial, USB), drive types, boot sequence, date and time, and virus/security protections, but they do not include IP address.

23
Q

Which of the following slot types used for video is being replaced by PCI Express?

A. PCI

B. PCI-X

C. AGP

D. CNR

A

C. AGP

As systems became faster, PC game players wanted games that had better graphics, more realism, and more speed. However, as the computers got faster, the video technology couldn’t seem to keep up, even with the PCI bus. The AGP bus was developed to meet this need. Since 2004 this has been increasingly replaced by PCI Express.

Peripheral Component Interconnect, or PCI, was initially developed by Intel in the early 1990s as a standard.

PCI-X is an improvement over PCI.

Communications and networking riser (CNR) is a slot found on certain PC motherboards and used for specialized networking, audio, and telephony equipment.

24
Q

At what port does Telnet run?

A. 21

B. 80

C. 23

D. 53

A

C. 23

Telnet runs at port 23.

Port 21 is FTP.

Port 80 is HTTP.

Port 53 is DNS.

25
Q

Which of the following form factors is normally used for set-top boxes, media centers, and car computers?

A. ATX

B. AT

C. Mini-ITX

D. Nano-ATX

A

D. Nano-ATX

The Nano-ITX is even smaller than the Mini-ITX and is used for set-top boxes, media centers, and car computers.

ATX is an older form factor providing improvement over the AT.

The AT is even older than ATX and is no longer in use.

The mini-ATX is larger than the Nano-ATX but smaller than the ATX.

26
Q

Which of the following is similar to an inkjet printer with the exception that there is a small heater used to heat the ink?

A. Dye jet

B. Heat jet

C. Twist jet

D. Bubble jet

A

D. Bubble jet

Bubble jet printers are similar to inkjet with the exception that there is a small heater used to heat the ink.

Dye jet, heat jet, and twist jet are not terms used when discussing printers.

27
Q

An IP address of 192.168.61.8 falls into which network class?

A. Class A

B. Class B

C. Class C

D. Class D

A

C. Class C

Class C addresses have a value between 192 and 223 in the first octet.

An address in which the first octet is between 1 and 126 is a Class A address.

Class B addresses have a value between 128 and 191 in the first octet.

Class D addresses have a value between 224 and 239 in the first octet.

28
Q

Which of the following is a chip found in the motherboard that can enhance drive encryption security?

A. CMOS

B. TPM

C. EEPROM

D. BIOS

A

B. TPM

When the device has a Trusted Platform Module (TPM) chip present on the motherboard, additional security and options become available for drive encryption.

CMOS is a battery type used to provide power when the system is shut down.

EEPROM is a chip that can be erased and written to.

BIOS is used to store system settings.

29
Q

Which of the following services leases IP addresses to hosts?

A. DNS

B. DHCP

C. NFS

D. Telnet

A

B. DHCP

The DHCP service leases IP addresses to hosts and automatically configures them to use the TCP/IP network.

DNS resolves host names to IP addresses and vice versa.

NFS is a network file system developed by Sun Microsystems.

Telnet is a command-line remote access protocol.

30
Q

What is the process of updating the BIOS called?

A. Pairing

B. Elevating

C. Flashing

D. Flushing

A

C. Flashing

The process is referred to as flashing the BIOS. It simply means the old instructions are deleted from the EEPROM chip and the new instructions are written to the chip.

Pairing is the process of connecting two Bluetooth devices.

Elevating and flushing are not terms used when discussing updates to firmware.

31
Q

What value represents the relationship between the speed of the CPU and that of the motherboard bus?

A. CPU vector

B. Multiplier

C. Clock balance

D. Bus conversion

A

B. Multiplier

When the proper CPU speed is known, you must make sure the relationship between the speed of the CPU and that of the motherboard bus is correct. This is done with a value called the multiplier.

CPU vector, clock balance, and bus conversion are not terms used when discussing CPUs.

32
Q

Your mobile device is not changing the screen position when you move it. What component is malfunctioning?

A. Calibration

B. Resolution

C. Refresh rate

D. Accelerometer

A

D. Accelerometer

The accelerometer changes the screen orientation from landscape to portrait based on the position of the device. If it is not working correctly, this behavior will occur.

For a touchscreen device to operate correctly—that is, for it to interpret your touch correctly and react accordingly—it must be calibrated correctly. When you touch an item on the screen and nothing happens or a movement that normally results in an expected reaction does not, the calibration of the device is off.

Resolution and refresh rate are settings of the display.

33
Q

________________ is a measurement of the rate at which the clock signal oscillates and is expressed in millions of cycles per second or megahertz.

A. Wire speed

B. Clock rate

C. Primary rate

D. Clock cycle

A

B. Clock rate

The clock speed, or external speed, is the speed at which the motherboard communicates with the CPU. It’s determined by the motherboard, and its cadence is set by a quartz crystal (the system crystal) that generates regular electrical pulses.

Wire speed refers to the hypothetical peak physical layer net bitrate (useful information rate) of a cable.

Primary Rate Interface (PRI) is a telecommunications interface standard used on an Integrated Services Digital Network.

The clock cycle is the amount of time between two pulses of an oscillator.

34
Q

A BIOS intrusion detection notification informs you of what?

A. Unauthenticated logins

B. Opening of the case

C. Access to the BIOS

D. Malware attacks

A

B. Opening of the case

This may also be referred to as chassis intrusion detection or possibly a case open warning.

A BIOS intrusion detection notification does not inform you when unauthenticated logins are attempted, when the BIOS is accessed, or when malware attacks are underway.

35
Q

A _________________ once activated stays in contact with a monitoring center, allowing you to send the commands to lock the device and delete data via the center if the device is stolen.

A. TPM chip

B. LoJack

C. Wipe master

D. Remote cleaner

A

B. LoJack

LoJack is a product made by Absolute Software that allows you to remotely locate and lock the device and delete the data on a mobile device when it is stolen.

The TPM chip has nothing to do with sending command to the device.

Wipe master and remote cleaner are not terms used when discussing remote security.

36
Q

Ghosting is occurring on paper coming from your laser printer. Which of the following is the likely cause?

A. Bad HVPS unit

B. Broken fuser

C. Poor quality paper

D. Broken cleaning blade

A

D. Broken cleaning blade

Ghosting means you can see light images of previously printed pages on the current page. This is caused by one of two things: bad erasure lamps or a broken cleaning blade.

When the HVPS unit fails, the printer will have no power.

A broken fuser will result in the toner not sticking to the paper or smudging.

Poor-quality paper will not cause ghosting.

37
Q

What is the firmware called that contains settings that can be manipulated and diagnostic utilities that can be used to monitor the device?

A. Registry

B. BIOS

C. CMOS

D. TPM

A

B. BIOS

This firmware called the Basic Input/Output System (BIOS) contains settings that can be manipulated and diagnostic utilities that can be used to monitor the device.

The Registry is where Windows stores hardware and software information.

CMOS is a type of battery used to power the system when turned off.

TPM is a chip on the motherboard used to store cryptographic keys.

38
Q

Which of the following takes the DC power the laptop is providing and boosts it up to AC to run the backlight?

A. Converter

B. Inverter

C. Polarizer

D. Adapter

A

B. Inverter

The inverter takes the DC power the laptop is providing and boosts it up to AC to run the backlight.

Converter, polarizer, and adapter are not terms used when discussing DC to AC laptop power.

39
Q

What are two methods of recovering a forgotten BIOS password?

A. Rebooting the computer

B. Removing the CMOS battery

C. Reinstalling the operating system

D. Using the reset jumper in the motherboard

A

B. Removing the CMOS battery

D. Using the reset jumper in the motherboard

To reset a forgotten password, you can remove the CMOS battery to reset everything. There may also be a Reset jumper on the motherboard you can use instead.

Rebooting the computer or reinstalling the operating system will not recover a forgotten BIOS password.

40
Q

Which of the following is the most common expansion slot found in PCs?

A. ISA

B. PCI

C. PCI-X

D. PCIe

A

D. PCIe

The PCIe or PCI Express is the most common slot found in today’s computers.

ISA is the earliest and least likely interface to be found now.

PCI is the successor to ISA, and PCI-X is the successor to PCI.

41
Q

An IP address of 104.16.3.1 falls into which network class?

A. Class A

B. Class B

C. Class C

D. Class D

A

A. Class A

An address in which the first octet is between 1 and 126 is a Class A address.

Class B addresses have a value between 128 and 191 in the first octet.

Class C addresses have a value between 192 and 223 in the first octet.

Class D addresses have a value between 224 and 239 in the first octet.

42
Q

When a system keeps losing the proper date and time, what is usually the problem?

A. Dead CMOS battery

B. Bad NIC

C. Bad network cable

D. Missing service pack

A

A. Dead CMOS battery

When the PC is not keeping the correct time or date when turned off, it is usually a CMOS battery issue and a warning that the battery is going to die soon.

A bad NIC, bad network cable, or missing service pack will not cause the system to lose data and time settings.

43
Q

Which connectors are used to connect a DSL modem to a network card and to a phone line? (Choose two.)

A. RJ-8

B. RJ-11

C. RJ-45

D. RJ-60

A

B. RJ-11

C. RJ-45

The network card connects to the DSL modem using a standard RJ-45 connector, and the DSL modem connects to the phone jack using a phone cord that has RJ-11 connectors.

There is no RJ-8 or RJ-60.

44
Q

What is the default subnet mask for a Class B address in IPv4?

A. 255.0.0.0

B. 255.255.0.0

C. 255.255.255.0

D. 255.255.255.255

A

B. 255.255.0.0

The default subnet mask for a Class B address is 255.255.0.0.

  1. 0.0.0 is the default mask for Class A.
  2. 255.255.0 is the default mask for Class C.
  3. 255.255.255 is a 32-bit subnet mask.
45
Q

Which of the following is not an advantage of using flash memory for storage instead of a hard drive?

A. Reduced heat

B. Lower cost

C. Lower power consumption

D. Less noise

A

B. Lower cost

The advantages of flash memory are reduced heat, lower power consumption, less noise, and better reliability since you have no moving parts. The disadvantages are higher cost and less capacity.

46
Q

Your mobile device is not responding correctly to your touch. What needs to be adjusted?

A. Calibration

B. Resolution

C. Refresh rate

D. Accelerometer

A

A. Calibration

For a touchscreen device to operate correctly—that is, for it to properly interpret your touch and react accordingly—it must be calibrated correctly. When you touch an item on the screen and nothing happens or a movement that normally results in an expected reaction does not, the calibration of the device is off.

Resolution and refresh rate are settings of the display.

Accelerometers and gyroscopes can be used by mobile devices to determine the movement and tilt of the device.

47
Q

Laptops often allow you to switch the display to an external monitor. This is accomplished through what type of key combination?

A. Alt

B. Ctrl

C. Fn

D. Shift

A

C. Fn

This is accomplished through an Fn key combination (for example, Fn+F8 on most Dells, Fn+F4 on many HPs, and so on).

Alt, Ctrl, and Shift are not used to initiate alternate functions on keys.

48
Q

Which of the following cannot be monitored in the BIOS?

A. Fan speeds

B. Network card traffic rate

C. Intrusion detection notifications

D. Temperature

A

B. Network card traffic rate

NIC traffic rates cannot be monitored in the BIOS. All other issues can be monitored.

49
Q

Which of the following display connections provides the best picture?

A. DVI

B. VGA

C. DisplayPort

D. HDMI

A

D. HDMI

While both DVI and HDMI provide a high-quality digital picture, the HDMI connection will be the best.

VGA and DisplayPort are both inferior to HDMI or DVI.

50
Q

Which of the following is any machine or interface that participates in a TCP/IP network?

A. Workstation

B. Host

C. Client

D. Server

A

B. Host

A host is any machine or interface that participates in a TCP/IP network, whether as a client or as a server. Every interface on a TCP/IP network that must be issued an IP address is considered a host.

A workstation is a device used by a regular user and can be either a laptop or a desktop.

A client system is one that is seeking access to a service while a server is a device that provides that service.

1920 Computer Hardware 220-1001 (24 decks)

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